I. Chia đúng thì
1. There are many ways ( lead) to Rome.
2.I am reading this novel. By the time you come bacj fron work I ( finish)
3. When we got home. Dinner ( prepare), so we had a drink first.
4. Before Nam leaves New York, he ( have) several talks.
5. We had just got out of car when it ( begin) to set fire.
6. He was told that ( knock) out in the first round.
7. Since the appearance of karaoke machines, they widely ( use).
8. In 1996, my brother ( study) at Havard University.
9. Are you learning your lessons? - No, I ( finish) it
10. Lan ( appear) on TV forba long time.
11. We ( wait) for her half an hour before she came.
12. We saw the criminal ( arrest) by the police this morning.
13. In one year's time, I ( work) in this school for 15 years.
14. They( finish) this course by next june.
15. After I ( have) luch, I looked for my bag.
16. The man got out of the car, ( walk) round to the back and opened the boot.
17. For several years his ambition ( be) to he a pilot.
18.He ( go) into the restaurant when the writer was having dinner.
19. Before you asked me the letter ( write).
20. I shall be glad when he ( go)
21. When he returned home, he found the door ( unlock).
22. I could not cut the grass because the machine ( break) down a few days previously
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